Daniel thompson



(No Model.)

- SCYTHE SNATH FASTENING! No. 328,363. Patented Oct. 13, 1885.

ATTEST N EN OR- Unrreo STATES PATENT mice,

DANIEL 'lllOiillhKiN, ()l OVID, MICHIGAN, ASSI GNO R TO DERBY & BALL, Uh V|:l |lll J()\\' b FALLS, Vl lltillUN'l.

FASTENING.

SPECIFICATION forming part of Letters Patent No. 328,363, dated October 13. 1883.

Application filed June 26,1894v Serial No. 12ltl,t)fl5. (No model.)

To aZZ whom it 71mg concern:

"to it known that l, iMNllCl', in'o1\irsm:, of Ovid, in the county of Ulinton and State of Miehigz'tn, have invented certain new and use ful improvements in iitifflllU-ifillllhll Fasten ings; and i. do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings. making part of this appli' cation.

lily invention relates more particularly to that styleor t peof si'aythc-fasteners in. which (as shown, for instance, in the United States lteissued Patent No. 9,637) the tang of the scythe is held near its root within a clampingloop, and has a projection or lug near its end engaged with an apertmed. holder device that is adjustable for the purpose of Varying the hang of the scythe; and my saidinventiou consists, essentially, in the novel construction and combined arrangement of devices that will be hereinafter more fully explained, and that will be found particularly pointed outin theclaim of this specification.

To enable those skilled in the art to which my invention relates to make and use my improved contrivance, ll will now proceed to more fully describe its etms-ztruction and operation, referring by letters to the accompany ing drawings, in which I have shown myinveution carried out in that form in which I. have, so far, successfully practiced it.

In the drawings, \i'hieh form part of this speciiication,- Figure l is a face view of the heel portion of a scythe snath or handle provided with my improved. fastener contrivanoe. Fig. 2 is a longitudinal Section thereof at the line :1; :1: of Fig. 1. Fig. it is a view similar to Fig. 2, but showing the adjustable or swii'iging plate ltltlrltlltitl up and in condition to be moved or adjusted, as and for the purpose to be hereinafter explained.

At Fig. 1, I have shown by dotted. lines and full lines two of the different positions in which the adjustable holder-plate maybe set, and. in the several lignres the same parts will be found always designated by the same letter of reference.

A. is the lower portion of an ordinary snath. having the usual depression or cutaway at a,

and provided at its lower extremity with a ll'lOlT-illliO ferrule like di'wice, B, of about the well-known form, through which (and the stock of the suath A.) passes the bolt or shank portion a and the base of theloop {i of the orclinnry eyebolt or loop-clamp that holds securely in place the root of the scythe-tangand that is drawn down and securely fastened in place by the nut i), all as clearly illustrated.

immediately above 1 he u ppur edge of the ferrule-like casting l;-,(which upperedge is preferably depressed in semicircular form,) is located an annular east-metal device, 0, wh ich is tightly fitted or seated .in a circular depression or countersink in the stock of the nnath A, and the upper surface of which is serrated or toothed, as shown, and immediately over this device is arranged the circular portion of the swinging or adjustable holder-plate f. This plate is formed, as shown, with a central hublike portion, 6, which tits and turns freely within the central opening of the device a, and is formed with an annular set of teeth or serrations,whieh engage with those of the device a. Said plate/is also formed with an aperture, 2, in its upwardly-extcnded portion, as seen, with which aperture engages the usual lug or projection on the cud of thetangof the scythe.

l is a bolt, which passes through the snath, as shown, is located eoncent rically of the annular toothed device c, and engages at its threaded portion with the eye or hole in the circular portion off, (which is tapped out to mat-ch the screw-thread on said belly) all as clearly illustrated. The bolt I is preferably provided with a washer, lit, between its head and the bearing-surface on the snath A, in order that the head may not impinge on or out into the wooden stock, and so that it may always turn freely in looseningand retightening the bolt.

It will be understood from the drawings, together with theforegoingdescription of the construction and arrangement of the parts, that the threaded end of bolt 11 serves the double function of a pivoted stud, on which the plate may be vibrated, to set it in different positions, (when said. bolt shall be unthe teeth of said plate and those ofthe device 0 to be disengagcth) and a fastener to draw the plate 1" home against and into aper feetly-interlocked condition with the fixture e.

The operation of my improved contrivanee will be readily understood without much further explanation. The plate f having been set in any desired position, (that, forinstance, shown in full lines in the drawings,) and securely fastened by turning home the bolt I, and the clamping-loop I) having been suiticiently loosened, the tang of the scythe is passed through said loop I) and its projecting lug enteredin aperture 2 of the platef. The loop I) is then drawn home by turning the nut D. and the scythe-tang is securely clamped or made fastto the shat-h.

\Vhenever it may be desired to change the hang of the scythe, the operator sufficiently unscrews the nut 1) to permit the tang to be moved; then nnloosens bolt I to an extent sutficicnt to allow the plate/"to become disengaged from the toothed device 0, and,having turned the platef into another position, (that, for instance, illnsl rated by the dotted lines) he turns the bolt 1 home again, thus effecting a secure re-engagement ot' the toothed portions of f and c in the changed position of the former.

To avoid the possibility of any turning or slip of the device a in its seat in the snath A, said device is preferably formed with one or moreprojeel ing nibs or chisel-like lugs that are suiiiciently indented into the hard wood of A to effect a reliable securement of the casting to the wooden seat on which it rests.

Of course the sizes, shapes, and proper tions of the parts, and their precise relative arrangement, may be varied more orless with out departing from my invention so long as the shown and described principle of construction and mode of operation be retained.

By the construction and combination of devices shown, a simple and efficient contrivance, it will be seen, is produced, and one in which a single bolt-like device serves both as the pivot or pint-le about which the adjustable platefswin s, and as the means for drawing home and fastening in place said plate].

By the use of the serrated annular devicee and the toothed plate f, combined as shown, a mere countersink of the hole for bolt- I serves as the seat for the toothed device, to which the platef may be locked in any of its different positions.

Having now so fully explained the construction and operation of my improved contrivance that any one skilled in the art can make and use it, what I claim as new, and desire to secure by Letters Patent, is

In combination with the snath A, provided with the usual ferrule-like device. l3, and clamping-eyebolt b c, the vibratory plate f, having its inner or under surface provided with an annular set of teeth or serrations, an annular toothed device,e, secured to the snath, and adapted to engage with the annular serrations of the plate f, and a bolt, I, which operates both as the pivot on which theplat-e f turns and also to clamp said plate in engagement with the device 0, all substantially in the manner and for the purpose hereinbefore set forth.

In witness whereof I have hereunto set my hand this 23d day of June, 1884.

1) AN I EL THOMPSON. In presence of- E. O. \Vinrn, H. E. Soirrrnvon'rn. 

